The picture marks what your mirrors can and cannot show. Which steps make up a safe lane change?
Correct answer: Signaling, a mirror check, and a shoulder check.
Answer options
ASignaling and a mirror check, since the mirrors cover every angle
BSignaling, a mirror check, and a shoulder check Correct
CSignaling and a shoulder check, since the mirrors add nothing
Why
Each step covers something the others miss: the signal tells nearby drivers your plan, the mirrors show the green areas behind and beside the car, and a glance over your shoulder covers the red blind spots. Move over only when both the mirrors and the shoulder check show the lane is clear.
